species 1,108 observations
Lustrous Copper
Lycaena cupreus
Field notes
Lycaena cuprea, the lustrous copper, is a butterfly of the family Lycaenidae. It is found in the western mountains of North America.
The wingspan is 23–30 mm. Adults are on wing from mid-June to July or August. They feed on the nectar of Cirsium, Medicago sativa and Melilotus species.
The larvae feed on Oxyria digyna and Rumex species.
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34
native plants
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided